CN107976250A - It is a kind of to be directed to the existing micro-vibration blast monitoring method for closing on railway - Google Patents
It is a kind of to be directed to the existing micro-vibration blast monitoring method for closing on railway Download PDFInfo
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- CN107976250A CN107976250A CN201710997841.8A CN201710997841A CN107976250A CN 107976250 A CN107976250 A CN 107976250A CN 201710997841 A CN201710997841 A CN 201710997841A CN 107976250 A CN107976250 A CN 107976250A
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- vibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The existing micro-vibration blast monitoring method for closing on railway is directed to the invention discloses a kind of, it is described to comprise the following steps for the existing micro-vibration blast monitoring method for closing on railway：(1) position relationship between existing railway and explosion tunnel is determined；(2) monitoring point is arranged；(3) vibration is monitored using vibration monitor；Vibration monitoring has been carried out to the existing structure particularly closed in explosion coverage for the existing micro-vibration blast monitoring method for closing on railway by the present invention, has therefore ensured that and verify influence of the blast working to surrounding environment and personnel.
Description
Technical field
The present invention relates to bored tunnel Technology of Blasting field, more particularly to for the existing micro-vibration for closing on railway
Blast monitoring method.
Background technology
With urban population rapid growth and land resource it is increasingly rare, the emphasis of land development and utilization oneself by ground
Develop to the underground space, it is necessary to underground traffic, parking lot, sports culture facility and underground commerce etc. largely be built, wherein passing through
The underground engineerings such as the tunnel of busy city proper will occupy greatly, be limited by place on line, tunnel is often closed on or even worn
More some important surface buildings or structures.Consider the side such as suitability, economy and technology handlability of excavation method
Face, the main construction method that drilling and blasting method will be within one section of some time from now on as tunnel excavation.Meanwhile constructing tunnel process
In must assure that the safety of the facilities such as periphery existing structure, landmark, reduce as far as possible blast working to surrounding enviroment and
The disturbance of personnel.Traditional drilling and blasting method can not meet urban central zone underground tunnel project construction requirement, should this
Urban central zone needs to carry out the blast working measure of micro-disturbance.
Country's generally use millisecond delay cap in drill bursting construction at present, because it is low with cost, easy construction etc.
Advantage.But in city carry out micro-disturbance blast working when, traditional millisecond delay cap can cause to vibrate it is excessive, to surrounding
Structure and personnel cause damage.And digital electric detonator is used, its burst time can be accurately controlled, and by being superimposed explosion
Means carry out drop and shake explosion.In order to ensure with influence of the verification blast working to surrounding environment and personnel, model is influenced on explosion
The existing structure particularly closed in enclosing need to carry out vibration monitoring.
It is desirable to have a kind of shock blasting monitoring method for the micro-vibration explosion in boundary of works area there are existing railway
Construction is monitored.
The content of the invention
It is an object of the invention to provide a kind of existing to overcome for the existing micro-vibration blast monitoring method for closing on railway
There is the above problem present in technology.
To achieve the above object, present invention offer is a kind of is directed to for the existing micro-vibration blast monitoring method for closing on railway
The existing micro-vibration blast monitoring method for closing on railway comprises the following steps：
(1) position relationship between existing railway and explosion tunnel is determined；
(2) monitoring point is arranged；
(3) vibration is monitored using vibration monitor.
Preferably, step (2) the arrangement monitoring point includes step in detail below：
1. before monitoring, by rail surface dedusting；
2. with the plaster of paris by sensor tight bond in track close to tunnel side, and the plaster of paris is used on railway bed
Arrange two monitoring points；
3. when layouting dust will be removed at roadbed and sensor contacts, connected to form body vibration, protected with the plaster of paris
It is correct to demonstrate,prove test result.
Preferably, the vibration monitor has three passages, and the vibration monitoring instrument configures 3 unidirectional velocity pick-ups
Device, 1 three-component velocity sensor or 1 Three-component accelerometer.
Preferably, the step of step (3) is monitored vibration using vibration monitor includes：
1. vertical velocity sensor and two horizontal velocity sensors are fixed on the monitoring point with the land plaster reconciled,
And two horizon sensors are in 90 degree of angles；
2. opening self recording instrument shell, adjustment signal coupling type, sample frequency, range, memory length, presetting length, touch
Originating party formula and triggering level parameter, step, 1. middle sensor output signal is sent to self recording instrument；
3. sampling switch is allocated to wait triggering state, self recording instrument is placed on can be with the object of vibration damping, personnel be left to peace
It is region-wide, wait detonation；
4. fetching self recording instrument to the monitoring point after explosion, and signal is analyzed and processed.
By the present invention for the existing micro-vibration blast monitoring method for closing on railway to special in explosion coverage
It is that the existing structure closed on has carried out vibration monitoring, therefore ensures that and verify influence of the blast working to surrounding environment and personnel.
Brief description of the drawings
Fig. 1 is existing railway cross section point layout schematic diagram.
Embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
The existing micro-vibration blast monitoring for closing on railway is directed to for the existing micro-vibration blast monitoring method for closing on railway
Method comprises the following steps：
(1) position relationship between existing railway and explosion tunnel is determined；
(2) monitoring point is arranged, the fixation of sensor is extremely important in blast monitoring, tested blasting vibration amount is excessive, biography
In the case that sensor fixation is bad, sensor can produce the slip of horizontal direction or lose contact in vertical direction, so as to influence
Test result；Even in the case where vibratory output is smaller, sensor fix it is bad also can make influence signal testing as a result,
Before monitoring, first by after rail surface dedusting with the plaster of paris by sensor tight bond in track close to tunnel side, and in iron
Two measuring points are arranged on the roadbed of road, dust will be removed at roadbed and sensor contacts when layouting, is connected with the plaster of paris to be formed
Body vibration, ensures that test result is correct；As shown in Figure 1, when existing railway arranges measuring point, blast working is being carried out every time
The corresponding rail arrangement monitoring section of tunnel tunnel face, each section set 4 measuring points, wherein rail measuring point 2, both sides railway
2 points of roadbed；
(3) vibration is monitored using vibration monitor, the vibration monitor has three passages, the vibration prison
Instrument configuration 3 unidirectional velocity sensor, 1 three-component velocity sensor or 1 Three-component accelerometer are surveyed, using shaking
The step of dynamic monitor is monitored vibration includes：
1. vertical velocity sensor and two horizontal velocity sensors are fixed on the monitoring point with the land plaster reconciled,
And two horizon sensors are in 90 degree of angles；
2. opening self recording instrument shell, adjustment signal coupling type, sample frequency, range, memory length, presetting length, touch
Originating party formula and triggering level parameter, step, 1. middle sensor output signal is sent to self recording instrument；
3. sampling switch is allocated to wait triggering state, self recording instrument is placed on can be with the object of vibration damping, personnel be left to peace
It is region-wide, wait detonation；
4. fetching self recording instrument to the monitoring point after explosion, and signal is analyzed and processed.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution described in foregoing embodiments, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (4)
1. a kind of be directed to the existing micro-vibration blast monitoring method for closing on railway, it is characterised in that comprises the following steps：
(1) position relationship between existing railway and explosion tunnel is determined；
(2) monitoring point is arranged；
(3) vibration is monitored using vibration monitor.
2. the existing micro-vibration blast monitoring method for closing on railway is directed to as claimed in claim 1, it is characterised in that the step
Suddenly (2) arrangement monitoring point includes step in detail below：
1. before monitoring, by rail surface dedusting；
2. with the plaster of paris by sensor tight bond in track close to tunnel side, and arranged on railway bed with the plaster of paris
Two monitoring points；
3. when layouting dust will be removed at roadbed and sensor contacts, connected with the plaster of paris to form body vibration, ensure to survey
Test result is correct.
3. the existing micro-vibration blast monitoring method for closing on railway is directed to as claimed in claim 1, it is characterised in that described to shake
Dynamic monitor has three passages, and the vibration monitoring instrument configures 3 unidirectional velocity sensors, 1 three-component velocity sensing
Device or 1 Three-component accelerometer.
4. the existing micro-vibration blast monitoring method for closing on railway is directed to as claimed in claim 3, it is characterised in that the step
Suddenly the step of (3) are monitored vibration using vibration monitor includes：
1. vertical velocity sensor and two horizontal velocity sensors are fixed on the monitoring point with the land plaster reconciled, and
Two horizon sensors are in 90 degree of angles；
2. self recording instrument shell is opened, adjustment signal coupling type, sample frequency, range, memory length, presetting length, triggering side
Formula and triggering level parameter, step, 1. middle sensor output signal is sent to self recording instrument；
3. sampling switch is allocated to wait triggering state, self recording instrument is placed on can be with the object of vibration damping, personnel be left to place of safety
Domain, waits detonation；
4. fetching self recording instrument to the monitoring point after explosion, and signal is analyzed and processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997841.8A CN107976250A (en) | 2017-10-24 | 2017-10-24 | It is a kind of to be directed to the existing micro-vibration blast monitoring method for closing on railway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997841.8A CN107976250A (en) | 2017-10-24 | 2017-10-24 | It is a kind of to be directed to the existing micro-vibration blast monitoring method for closing on railway |
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| CN107976250A true CN107976250A (en) | 2018-05-01 |
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| CN201710997841.8A Pending CN107976250A (en) | 2017-10-24 | 2017-10-24 | It is a kind of to be directed to the existing micro-vibration blast monitoring method for closing on railway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139019A (en) * | 2018-09-04 | 2019-01-04 | 中铁十二局集团有限公司 | It is latent to bury the monitoring method and monitoring device that Existing Subway road is cut through under bored tunnel |
| CN109470098A (en) * | 2018-10-29 | 2019-03-15 | 武汉大学 | Structure demolition vibration damage evaluation method based on High frequency photographing measurement |
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| CN203148324U (en) * | 2013-05-13 | 2013-08-21 | 汇通路桥建设集团有限公司 | Tunnel excavation vibration attenuation smooth blasting construction safety monitoring system |
| CN104089551A (en) * | 2014-04-11 | 2014-10-08 | 中国水利水电第十一工程局有限公司 | Old sluice directional incline, collapse, demolition and blasting construction method |
| CN104390537A (en) * | 2014-09-23 | 2015-03-04 | 武汉大学 | Method for controlling damage of slope pre-splitting blasting digging based on blast vibration test |
| CN206208382U (en) * | 2016-10-26 | 2017-05-31 | 昆明理工大学 | A kind of device for gathering blasting vibration signal |
| CN106840381A (en) * | 2017-03-15 | 2017-06-13 | 中国科学院武汉岩土力学研究所 | A kind of method of testing of blasting vibration attenuation effect |
| CN206387493U (en) * | 2017-01-13 | 2017-08-08 | 上海交大海洋水下工程科学研究院有限公司 | Immersed tube tunnel closure door vibration monitoring device |
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2017
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Patent Citations (6)
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|---|---|---|---|---|
| CN203148324U (en) * | 2013-05-13 | 2013-08-21 | 汇通路桥建设集团有限公司 | Tunnel excavation vibration attenuation smooth blasting construction safety monitoring system |
| CN104089551A (en) * | 2014-04-11 | 2014-10-08 | 中国水利水电第十一工程局有限公司 | Old sluice directional incline, collapse, demolition and blasting construction method |
| CN104390537A (en) * | 2014-09-23 | 2015-03-04 | 武汉大学 | Method for controlling damage of slope pre-splitting blasting digging based on blast vibration test |
| CN206208382U (en) * | 2016-10-26 | 2017-05-31 | 昆明理工大学 | A kind of device for gathering blasting vibration signal |
| CN206387493U (en) * | 2017-01-13 | 2017-08-08 | 上海交大海洋水下工程科学研究院有限公司 | Immersed tube tunnel closure door vibration monitoring device |
| CN106840381A (en) * | 2017-03-15 | 2017-06-13 | 中国科学院武汉岩土力学研究所 | A kind of method of testing of blasting vibration attenuation effect |
Non-Patent Citations (1)
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| 曹全: "邻近病害铁路隧道山体***振动控制", 《铁道建筑技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139019A (en) * | 2018-09-04 | 2019-01-04 | 中铁十二局集团有限公司 | It is latent to bury the monitoring method and monitoring device that Existing Subway road is cut through under bored tunnel |
| CN109470098A (en) * | 2018-10-29 | 2019-03-15 | 武汉大学 | Structure demolition vibration damage evaluation method based on High frequency photographing measurement |
| CN109470098B (en) * | 2018-10-29 | 2019-10-25 | 武汉大学 | Structure demolition vibration damage evaluation method based on High frequency photographing measurement |
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